Jami` at-Tirmidhi, Hadith 3382 ⓘ
Abu Hurairah [may Allah be pleased with him] narrated that: The Messenger of Allah said: “Whoever wishes that Allah would respond to him during hardship and grief, then let him supplicate plentifully when at ease.”
حَدَّثَنَا مُحَمَّدُ بْنُ مَرْزُوقٍ، حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ وَاقِدٍ، حَدَّثَنَا سَعِيدُ بْنُ عَطِيَّةَ اللَّيْثِيُّ، عَنْ شَهْرِ بْنِ حَوْشَبٍ، عَنْ أَبِي هُرَيْرَةَ، رضى الله عنه قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ سَرَّهُ أَنْ يَسْتَجِيبَ اللَّهُ لَهُ عِنْدَ الشَّدَائِدِ وَالْكُرَبِ فَلْيُكْثِرِ الدُّعَاءَ فِي الرَّخَاءِ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ .
also referenced under: Book 48, Hadith 13 (In-Book) & Volume 6, Book 45, Hadith 3382 (DarusSalam)